用宽带噪声分离声强测量系统相位误差的实验研究

Experimental Research on Separated Phase Error from Sound Intensity Measurement System

】讨论了使用宽带噪声分离声强测量系统相位误差的实验技术，它可方便地将传声器、前置放大器、测量放大器等环节的相位不匹配误差进行分离测量。所给测量方法实用、操作简单、方便。

In this paper,the experimental method is discussed that the phase errors of acoustical intensity measuring system are separated by use of pink noise.It can conveniently distinguish the errors of intensity probe,preamplifier,measuring amplifier and so on.The method is practical and simple.